1 /* $OpenBSD: frame.h,v 1.13 2018/06/15 17:58:41 bluhm Exp $ */ 2 /* $NetBSD: frame.h,v 1.12 1995/10/11 04:20:08 mycroft Exp $ */ 3 4 /*- 5 * Copyright (c) 1995 Charles M. Hannum. All rights reserved. 6 * Copyright (c) 1990 The Regents of the University of California. 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to Berkeley by 10 * William Jolitz. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)frame.h 5.2 (Berkeley) 1/18/91 37 */ 38 39 #ifndef _MACHINE_FRAME_H 40 #define _MACHINE_FRAME_H 41 #include <sys/signal.h> 42 43 /* 44 * System stack frames. 45 */ 46 47 /* 48 * Exception/Trap Stack Frame 49 */ 50 struct trapframe { 51 int tf_fs; 52 int tf_gs; 53 int tf_es; 54 int tf_ds; 55 int tf_edi; 56 int tf_esi; 57 int tf_err; /* not the hardware position */ 58 int tf_ebx; 59 int tf_edx; 60 int tf_ecx; 61 int tf_eax; 62 int tf_trapno; 63 /* below portion defined in 386 hardware */ 64 int tf_ebp; /* hardware puts err here, INTRENTRY() moves it up */ 65 int tf_eip; 66 int tf_cs; 67 int tf_eflags; 68 /* below used when transitting rings (e.g. user to kernel) */ 69 int tf_esp; 70 int tf_ss; 71 /* below used when switching out of VM86 mode */ 72 int tf_vm86_es; 73 int tf_vm86_ds; 74 int tf_vm86_fs; 75 int tf_vm86_gs; 76 }; 77 78 /* 79 * Interrupt stack frame 80 */ 81 struct intrframe { 82 int if_ppl; 83 int if_fs; 84 int if_gs; 85 int if_es; 86 int if_ds; 87 int if_edi; 88 int if_esi; 89 int :32; /* for compat with trap frame - err */ 90 int if_ebx; 91 int if_edx; 92 int if_ecx; 93 int if_eax; 94 int :32; /* for compat with trap frame - trapno */ 95 int if_ebp; 96 /* below portion defined in 386 hardware */ 97 int if_eip; 98 int if_cs; 99 int if_eflags; 100 /* below only when transitting rings (e.g. user to kernel) */ 101 int if_esp; 102 int if_ss; 103 }; 104 105 /* 106 * iret stack frame 107 */ 108 struct iretframe { 109 int irf_trapno; 110 int irf_err; 111 int irf_eip; 112 int irf_cs; 113 int irf_eflags; 114 int irf_esp; 115 int irf_ss; 116 /* below used when switching back to VM86 mode */ 117 int irf_vm86_es; 118 int irf_vm86_ds; 119 int irf_vm86_fs; 120 int irf_vm86_gs; 121 }; 122 123 /* 124 * Trampoline stack frame 125 */ 126 struct trampframe { 127 int trf__deadbeef; 128 int trf__kern_esp; 129 int trf_fs; 130 int trf_eax; 131 int trf_ebp; 132 int trf_trapno; 133 int trf_err; 134 int trf_eip; 135 int trf_cs; 136 int trf_eflags; 137 int trf_esp; 138 int trf_ss; 139 /* below used when switching out of VM86 mode */ 140 int trf_vm86_es; 141 int trf_vm86_ds; 142 int trf_vm86_fs; 143 int trf_vm86_gs; 144 }; 145 146 /* 147 * Stack frame inside cpu_switch() 148 */ 149 struct switchframe { 150 int sf_edi; 151 int sf_esi; 152 int sf_ebx; 153 int sf_eip; 154 }; 155 156 struct callframe { 157 struct callframe *f_frame; 158 int f_retaddr; 159 int f_arg0; 160 }; 161 162 /* 163 * Signal frame 164 */ 165 struct sigframe { 166 int sf_signum; 167 siginfo_t *sf_sip; 168 struct sigcontext *sf_scp; 169 sig_t sf_handler; 170 struct sigcontext sf_sc; 171 siginfo_t sf_si; 172 }; 173 #endif 174